Process of wire-tying bags.



A. M. BATES.

PROCESS 0F WIRE TYING BAGS.

APPLIOATIONFILBD DEU. 1a, 1911.

1,131,311, Patented Mar.9,1915.

2 SHEETS-SHEET l.

A. M. BATES. PROCESS 0F WIRE TYING BAGS. APPLICATION FILED DB0. 1s. 1-911,

1,131.31 1. Patented Mar. 9, 1915.

Z SHEETS-SHEET 2.

l ff/ DST S PATNT FEiG.

ABBLMBBMAMUS Barns, or CHICAGO, ILLINors, assrenor. 'ro Barns varivn BAG com-Baur, or cmcaeo, ILLINOIS, A conronarron or WEST vrneiimi.

. rnocnss orwmE-TYING BAGS.

aisasii.

Ta-all whom t mayvconcm Be it known that I, Armerina-Marcos' and useful Improvement in the' Process of- Wire-Tying Bags, of which the Lfollowing isA a specilication.

- My invention relates to "wire-tying closreceptacles such as bags, to

ures for receptacles andthe like, and ispar-l ticularly applicable to the ying of yielding orm the closures thereof.

The process is illustrated or its various steps pointed out diagrammatically in the accompanying drawings, where it V1s shown as applied to closing the openmouth of an em ty bag.v

igure 1 is a plan.view with xthe bag hold# ing apparatus open; Fig.2 isa similar view with arts shown in section and dotted lines and t e bag inlosed; Fig. 3 is a similar view with-thewelding completed; Fig. 4 is aside elevation illustrating an early stage of the operation; Fig. 5, a partj elevation and .part cross section showing the ring completed;

' Fig. 6, a plan v iew of the parts illustrating the beginning of the tightening operation Fig. 7, a plan view of the parts where the process has been completely carried out.

' Like parts are indicated by like letters.

throughout the several figures.

- A is a frame piece on which a reciprocating rod B is mounted. This -rod has a hook C at one end adapted to engage the rin D and when reciprocated as illustrated in i'ig. 6, to tighten the ring; and when turned on its axis, to twist the ring as at E and form the unlocking keyF.

G is a bag and H a support against which it maybe drawn during the tightening proc- J, J are vpivoted arms, one carrying the movable electrode J1 inwardly forced by the spring J2 `and connected by the conductor J 3,

with the generator J y D K is a halff ring at the outer end of which are the arms K2, K2, the latter having the electrode Ka connected by the conductorK with the generator J L ie e emma making eed breakin. deviee `which may be included either int e conductorJ or K".

Speccation of Letters Patent.

. overlapped one on'the other.

atented Mar. 9, 1915.

Application 'filed December 13, 1911. Serial No.-'685,536.

M is a section of wire adapted, when its ends are brought around and' overlapped and welded, to formvthe ring ring K andthe arms K1 K2 together, when 'folded in the position shown in Figs. 2 to 5 inclusive, form the downwardly depending forming ring placed so that `as thewire M is carried forward 'and bent around it by the larms J, it will fall into the position indilcated 1n the drawings about the forming ring and justabove the bottom thereof.

riving means not shown are provided which are so arranged that one arm J' will move in advance of the other, and they are suitably grooved to retain the wire, so that D. The -liallfwhen the parts are folded together as indicated in Fig. 2,v the ends of the wire are The electricvl current is then turned onand as the welding softens the metal, the two overlapped portions are pressed together by the spring J2 so that they come eventually into practically the position indicated in Fig. 3. Thus a completed inclosinglring is formed with the least possible amount of wire, and with the object to be tied inclosed thereby. The inclosing ring has no projecting parts, and requires for its formation no rotating or violently moving parts. The inclosing ring, however, is a little lar er than the object to be tied, but much sma 1er than it would be if it were separately made large enough to slip over the 'end of the bag. The inclosing ring is now released and dropped down onto the object, inthis case a folded bag. The hook (l on the rod B has during the operation been within the inclosing ring, and it is v'now retracted in any desired manner, the bagbeing supported'against the part H, which is itself supported b a frame not shown, whereupon the inc osing ring is tightened on the bag. Tomake the closure permanently tight, the rod is rotated so as to twist and form a loop in the inclosing ring', as shown in Fig. 7. This loop has no e process can be carried out byhand except as to the matter of welding and it could be carried out by someother and greatly varying structures. Ilhe ring, of course, need not in every case be overlapped, but for ordinary bags, landt is for such use that I have illustrated my invention, such Ene wire is used that it is important,A if not necessary, t0 overlap it. The term welding is here meant to include any means for attaching the ends together where they are not twisted or tied or where heat is employed, and it specically includes that method wherein an elec-V tric current is employed. v

rlhe inclosed ring is formed, broadly speaking, about the object to be tied, and 1n^ this particular case, about the forming ring which surrounds or holds the object to be tied. The forming ring, or some hand tool or substitute therefor, is necessary to enable the welding or heating process for finishing the inclosing ring to be applied. The inclosing ring, when slipped onto the bag 'or object is but a trie larger and of such slze that to slip it over the end of the object to v b e tied would be extremely ditcult' if not wholly impracticable. Thus a large amount vte of wire in the formation of the' inclosing. ring is saved.

'.lhere is no rapidly rotating or moving part associated with the operation of finishing the inclosing ring. The presence of such a part is dangerous to the operator and to the fabric and takes up room. There are no free projecting ends to injure the hands of the operator or the fabric. rlhe inclosing ring when released from the forming ring surrounds the object to be tied, or the bag and if, as is usually the case, it is then necessary to tighten the inclosing ring,lit can be done by twisting the loop, but this does not result in free projecting ends. An untying key is formed in the shape of a short loop which leaves nothing, however, to injure either the fabric or the hands ofthe operator. A it can 'be folded up tightly against the object or bag. Where inclosing rings are formed separate from the bag or other object, they must be inserted over the end thereof, and must be larger than .is necessary to formthe closure,and hence there is a great loss of wire. In addition to this, the step in the process lof making theclosure, whichcons1sts in bringing the lobject or bag into position and then-placing the inclosing nished rin -thereover, is diHi-f cult and expensive. ot infrequently it is impossible, as for example, wherebags are being formed in a continuous series from p strips of material, the ba being formed and thensevered.- Thus by orming the inclosing ring on the article to be tied,l these and other advantages result. s

if the inclosing ring ybe formed on the cases be made slightly larger than the ob-v object by twisting or tying its fends, the result is a rapidly moving piece yof mechanism, and projecting injurious free ends. This applies vto wire as distinguished from rods whichmight be held in position by their own rigidity. Twisting or tying the wire involves also a very considerable loss.

The tying or twisting method has the advantage of tightening the inclosing ring on the object, as in the .case of wire-tying is finished by the heating processes broadly included in the term welding, or specifically by welding, they 'must practically in all ject to be tied, so as to need subsequent tightening. This will usually be true because of the diiiiculty in drawing the Wire tightly about the objectin the process of forming the'inclosing ring where these wiresA are not twisted about each other. ln this latter case, the twisting may be made the means of tightening'. 4If, however, the inclosing ring is formed, for example, by

welding, and is not as tight as it ought to be, another step, thatof separately tightening the closure, is necessary. The electrode,

or other part employed in the process of j forming the inclsing ring and lying-within the ring, will result in making the ring lso large that it needs tightening.

The object,v of my' invention, therefore,l Vbroadly speaking, is toavoid'the objections incident to the use of rings separately made and then applied to the bag or object, and the use of) twisted or tied rings formed on the object. The means which- I employ, broadly speaking, include the formation of a heat finished ring on the object and where necessary, its tightening by subsequent and separate steps. And specically the object of -my invention is to form a wire welded ring closure for bags of iexible, yielding, combustible material, and to tighten the same after they are formed on the bags so 11o as to leave an untying loop and no free, sharp ends, and the method consists in a succession of steps which are necessary to bring about these results.

The drawings are of course very diagram- '115 'matic and a number of parts and features have b een omitted, as it is believed that the operatlon of the machine is perfectly clear and they or their equivalents are shown in the other .co-pending 'applications by the 120 same applicant, #601,082,

filed January- 6, 1911. process for fastening bags;

#788,516?, filed Sept. 8, 1913, process of wire tying and packaging bags; and

#788,517, filed Sept. 8, 1913, wire tie for 125 twisting bags.

l claim: 1. The process of wire-tyin bags which consists in gathering the fol s thereof together, inclosing the same with a wire, heatv bundles of gram. Where the incloslng ring manera joining the ends of the wire to forni an inclosing ring about the bag and then tight. ening such ring upon the object.

2. The rocess of wire-t 7ing baOs which consists in gathering -the folds thereof together, inclosing the saine with- 'a wire, heatjoining' the ends of the wire'hile protecting the fabric of the bag from the heat so as to forin an inclosing ring about the bug, and then tightening the ring upon the bag.

3. The process of Wire-tying bags which consists in gathering the folds thereof together, inclosing the saine with a wire, heatjoining the ends of the wire to form an inclosing ring about the bag, and then tightening the ring upon the bag.

fl. The process of wire-tying bags which consists'in gatheringthe folds thereof together, inclosing the same with a`wire, heatjoining the ends of the wire while. protecting the fabric of the bag from the heat so as to form an inclosing ring about the bag,

and then tightening the ring upon the bag by twisting an untying loop therein.

consists in gathering the folds thereof ttigather, inclosingvthe same With a wire bent 5. The process of wire-tying bags -which consists in gathering the folds thereof to.

gether, inclosing the same with a wire, heatlJoining the ends of the wire to form an inclosing ring about the bag, and then tightening the ring upon the bag by twisting an untyingloop therein. Y u

6. The process of wire-tying bags which consists in gathering the 'folds thereof together, inclosing the same with a wire bent in the form of a ring made larger than the cross section of the bag fold, heat-joining the ends of the wire to form 'an inclosing ring about the bag and then tightening the ring about the bag.

7. The process of wire-tying bags which consists in gathering the folds thereofto gether, inclosing the same with a wirel bent in the form of a ring'y made larger than the cross sebtion of the bag fold, heatfjoining the ends of the wire while protecting the fabric of the -bag from the heat to form an inclosing ring about the bag.

consists in gathering the folds thereof together, inclosing 'the saine with a wire bent in the form of a ring made larger than the cross section of the bag fold, heat-joining the ends of the wire to form an inclosing ring about the bag and then tightening the ring on the bag by twisting an untying loop therein.

11. The process of wire-tying bags which consists in gathering the folds thereof together, inclosing the same with a wire bent in the forni of a ring inade larger than the cross section of the bag fold, heat-joining the ends of the Wire while protecting the fabric of the bag from the heat to form an inclos-v ing ring about the bag, and thon tightening the ring on the bag by twisting an untying loop therein. 12. The process of wire-tying bags which consists in gathering the folds thereof together, inclosing the saine with a wire bent v in the form of a ring but larger than the desired inclosing loop, electro-welding the ends of the wire while protecting the fabric of the bag from the heat to form an inclosing ring about'the bag and then tightening the ring on the bag by twisting a loop therein.

13. The process of wire-tying bags which consists in gathering the folds thereof together, inclosing the same with a wire bent and its ends overlapped, heat-joining the l overlapped ends of the wire to form an inclosing ring about the bag and then tighteni ing the ring about the bag.

14:. The process of wire-tying bags which consists in gathering the folds thereof together, inclosing the saine Witli'a Wire bent and its ends overlapped so as to form a ring, heat-j oining the ends of the wire while protecting the fabric of the bag from the heat to form an inclosing vring about the -bag.

' 'and its ends overlapped so as to form a ring of 8. The process of Wire-tyin bags which` consists in gathering the fol sv thereof together, inclosing the same witha wirev bent in the form' of a ring made larger than the cross section of thebag fold, heat-joining the ends ofthe `wire to form an inclosing ring about the bag and then tightening the ring on the bag. l

9. The process of wire-tying bags which 1n the form of a ring made larger than the cross section of the bag fold, heat-joining ythe ends of the wire while protecting the fabric of the bag from the heat tol form an inclosing ring about the bag, and then tightening the ring on the bag. y

10. The'process of wire-tying bags which Asomewhat larger size than thecross section of the fold, heatjoining the ends ofthe wire to form an inclosin ring about the bag 'and/then tightening t e ring about the ag. y

16. The process of wire-t ing vbags which consists in gatheringfthe olds thereof together, inclosing the same with a wire bent and its ends overlapped so as to form a ring, electro-Welding -the overlapped ends of the wire while protecting the fabric of the bag from the `heat to form an inclosing ring about the bag. Y

17. The process of wire-i'ying bags which consists in Vgathering the and its ends overlapped, heat-joining the overlapped ends of the wire'to^ form an inolds thereofv tov lgether, inclosing the saine with awire bent 15` l and its ends overlapped so as to form a ring closing ring about the bag, 'then tightening the ring on the bag by twisting an untying loop therein.

18. The process of wire-tying bags which consists in gathering the folds thereof together, inclosing the same with a wire bent and its ends overlapped so as to form a ring, heat-j oining the ends of the wire while protecting the fabric of the bag from the heat to form an inclosing ring about the bag, then tightening the ring on the bag by twisting an untying loop therein.

19. The process of wire-tying bags which consists in gathering the folds thereo together, inclosing the same with a wire bent of somewhat larger size than the cross seotion of the fold, heat-j oining the ends of the wire to form an inclosing ring about the' bag, then tightening the ring on'the bag by 20 L. G. Ross, GENEVA Hmm. 

